Hi!!
I am trying to size an over low of a atmospheric tank, although i know the basic rules of thumb for sizing over flow line (One inch size greater/ equal to max inlet line size) but in my case actually inlet line has gravity flow from a height of 14 m with 6 inch diameter. i have performed line sizing of over flow on aspen hysys, if i go with DP approach across inlet line and over flow line that doesn't fruitful because gravity flow has low DP than horizontal flow. please help me out on what basis should i go for sizing over flow line of this tank.
Thanks in advance.